1
INSTALLATION AND
MAINTENANCE MANUAL
Water Heater
« VENTIS »
2
SOMMAIRE
© Copyright
This range of products are constantly being updated and refined. We reserve the right to change our products and
their relevant technical data contained in this publication at any time and without prior notice.
Section No. Section Page
1 GENERAL RECOMMENDATIONS 3
2 RECEPTION - STORAGE 3
3
RANGE PRESENTATION
3-1 Presentation
3-2 Accessories
4 - 5
4
TECHNICAL CHARACTERISTICS
4-1 Coils
4-2 Dimensions
4-3 Dimensions des accessories
6 - 7
5 LOCATION 8
6
INSTALLATION
6-1 Mounting without bracket
6-2 Mounting with bracket
6-3 Horizontal supply air grille mounting
6-4 Vertical supply air grille mounting
6-5 Mixing box and accessories mounting
6-6 Filter box mounting
9 - 14
7 HYDRAULIC CONNECTION 15
8
ELECTRICAL CONNECTION
8-1 Single phase fan
8-2 Three phase fan
8-3 Wiring
16 - 19
9
COOLING OPTION
9-1 Presentation
9-2 Condensate drain pan mounting
9-3 Moisture collector mounting
20 - 22
10
USAGE LIMITS AND GUARRANTY
10-1 Usage limits
10-2 Guaranty
23
3
1– GENERAL RECOMMENDATIONS
The Water Heater meets the requirements of the European directive of « Electromagnetic Compatibility
(EMC) » 89/336/CEE, to be incorporated in a complete installation. The installation must be in conformity
with the EMC directive.
Those units are used for big volume (warehouse, garage, workshop…)
Following the characteristics of the building, the heater could be suspended (vertical blowing) or mural
(horizontal blowing). This device must be used only for what it has been designed by the constructor.
The guarantee and also the contractual responsibility of the constructor are excluded in case of
damages caused by persons, animals or goods, further to installation, adjustment and maintenance
mistakes or inappropriate uses.
CAUTION: DO NOT INSTALL WATER HEATERS IN:
- Rooms containing chlorinated combination steam,
- Rooms which are excessively humid (electrical danger)
- Rooms with a high content of combustible dust,
- Domestic premises
NOTE : About the installation of heaters in buildings with fire protection system by sprinklers, the installer
must adjust the louvers in order that the air blast from the heater do not disturb the water jet of the
sprinklers. That means, the speed from the heater output must be in conformity with the APSAD
regulation.
For units equipped with filter casing, check regularly the state of the filter and replace it when it is
plugged and at least once a year.
The installation must be done by qualified person. The access to intern electric parts could be done if it is
necessary only when the power is turn off and by personal who has required qualifications.
Those prescriptions concern only the standard execution. It do not take into account construction
variations or special adaptations.
This manual is an integral part of supplies. The installer must give it to the user and explain the
functioning of the units and the installation. The manual must be conserved close to the unit.
2- RECEPTION - STORAGE
The equipment is delivered in an individual package, upon receiving the unit, check it. Unpack the device
by using required protections of accident prevention.
In case of damages, inform the carrier in the moment of the delivery. Check the conformity of delivered
goods in comparison to the order.
Store the equipment in a clean and dry room, away from shocks, vibration, divergences in temperature
and in an ambient environment with a rate of hygrometry lower than 90%
4
3– RANGE PRESENTATION
3-1 Presentation
The heater VT range is designed for heating and cooling :
3
2
1
2
1
3
4
5
Water heater
Designed to heat large volume buildings, this
heater is effective and polyvalent. It can be used
for direct blowing and fresh air supply. It can be
install vertically or horizontally.
Description
1– Exchanger is made of copper pipes with alu-
minium fins for good thermal efficiency.
Hot coil (low pressure) with 1, 2 or 3 rows de-
pending on the model. Tested at 105°C/ 8 bars.
2-Fan-motor assembly : motor with an external
rotor and profiled blades are welded on the rotor.
This technology ensure an excellent efficiency
and a low noise level.
3– Profiled louver series
Water heater with cooling option
Designed to heat and cold large volume buildings,
this heater is effective and polyvalent. It can be
used for direct blowing and fresh air supply. It can
be install only on the wall (horizontal blowing).
Description
1-Exchanger is made of copper pipes with alumin-
ium fins for good thermal efficiency (as on the left)
2-Fan motor assembly (as on the left).
3-Profiled louver series
4-Moisture collector, avoid the condensation wa-
ter spray into the room which is refreshed.
5– Condensate drain pan. When the unit is cool-
ing, the ambient humidity condensates on the coil.
So it is necessary to recover it by connecting a
drain pan.
5
3-2 Accessories
1
4 2
1
3
4
5
7
4
4
5
5
6
6
6
1– Heater
2– Filter box CFIVE
3– Universal casing CUVE
4- Filter + Filter support
5– Mixing box
6– Closing sheet metal
7– Outdoor grille
6
4– TECHNICAL CHARACTERISTICS
4-1 Coils
Maximum operating temperature : 95°C / Maximum pressure in functionning : 1.6 MPa
4-2 Dimensions
Model Water capacity (litre) ᴓ Connection
VT 3 1 row = 0.98 / 2 rows= 1.45 / 3 rows = 1.91 3/4"
VT 4 1 row = 1.50 / 2 rows = 2.13 / 3 rows = 2.77 1"
VT 5 1 row = 2.05 / 2 rows = 2.94 / 3 rows = 3.83 1"
VT 6 1 row = 2.75 / 2 rows = 3.87 / 3 rows = 4.98 1"1/4
VT 7 1 row = 3.62 / 2 rows = 5.31 / 3 rows = 7.00 1"1/4
D E F
G
C A
I
B
H H
3/4
Model A
(mm)
B
( mm)
C
(mm)
D
(mm)
E
( mm)
F
(mm)
G
(mm)
H
( mm)
I
(mm)
Weight
(kg)
VT 3 615 490 460 495 62 214 179 36 550 25
VT 4 720 570 480 590 74 211 171 42 620 41
VT 5 805 655 480 675 64 231 191 41 640 50
VT 6 915 735 505 765 70 226 176 44 640 53
VT 7 1 070 860 570 920 70 262 212 46 710 69
7
4-3 Accessories dimensions
Model A
(mm)
B
( mm)
C
( mm)
VT 3 490 615 180
VT 4 570 720 180
VT 5 650 805 180
VT 6 735 915 180
VT 7 Not available
Model A
(mm)
B
( mm)
VT 3 500 700
VT 4 500 700
VT 5 700 900
VT 6 700 900
VT 7 Not available
Model A
(mm)
B
( mm)
VT 3 485 685
VT 4 485 685
VT 5 685 885
VT 6 685 885
Not available
Model A
(mm)
B
( mm)
C
( mm)
Weight
(kg)
VT 3 595 585 825 28
VT 4 595 585 825 28
VT 5 795 785 1025 38
VT 6 795 785 1025 38
VT 7 Not available
Model A
(mm)
B
( mm)
VT 3 660 350
VT 4 660 350
VT 5 780 405
VT 6 780 405
VT 7 See bracket manual
Filter box
Mixing box
Damper
External louver
Wal mounting brackets
B
A
8
5- IMPLANTATION
Heaters installation is directly linked to the geometry of the place and to the number of selected devices.
Recommendations for a good implantation:
- Choose a quincunx placement that gives excellent results, the throw distance of the air will be chosen
in consequence.
- For locales with significant cold walls, as exhibition halls, the bowing will be directed on it.
- For the suspended units in vertical blowing, take care of the installation height and the blowing
temperature in order to do not disturb the persons that can be under the air blast.
Direction of assembly:
To facilitate the installation, the air supply grille is not
mounting on the unit when it is delivered. In that way,
the user can choose the direction according to the
installation. l
Caution : The units are delivered with directional fins
in closed position. Adjust their orientation in function
of the area at the time of the installation.
NOTE : About the installation of heaters in buildings with fire protection system by sprinklers, the installer
must adjust the louvers in order that the air blast from the heater do not disturb the water jet of the
sprinklers. That means, the speed from the heater output must be in conformity with the APSAD
regulation.
Height recommendation
Roof installation* Wall installation
Type Horizontal installation height* Wall installation height
VT 3 3,5 m 3 m
VT 4 3,5 m 3,2 m
VT 5 4,5 m 3,6 m
VT 6 5 m 4 m
VT 7 5,5 m 4,2 m
0.5 m
0.5 m
Hauteur d’installation
Hauteur d’installation
180 °
180°
9
6- INSTALLATION
6-1 Mounting without bracket
Be careful, if the mounting is without bracket, it is necessary to respect the following instructions. Any
other mounting can damage the unit.
Suspended mounting and/or slinging
Install 2 fixing parts (no provided) one after another.
- Unscrew one of 2 screws M8 of the upper face of the heater.
- Put the first fixing part.
- Tighten the screw before to put the second fixing part.
(Fixing parts and hangers not provided)
Ceiled mounting (Vertical blowing) :
Install 4 fixing parts (no provided) in the threaded holes at the
rear of the heater.
6-2 Mounting with bracket
Caution: these brackets are not suitable for use with mixing box with dampers.
Montage :
Before mounting the device, it is necessary to make sure of the support’s strength.
- Fix the brackets on the wall. Use the fasteners matched to the
wall material. Make a resistance testing.
- Fold the block tab of the brackets, see details on the right.
- Unscrew the 2 screws M8 on the upper face or on the lower face
according to the mounting (suspended or put down)
- Fix the heater with the previous M8 screws, block it.
- Block the rear of the unit with the tabs of the bracket by using the
pre-mounted screws on the rear of the unit.
Foresee a minimum space of 500 mm between the rear of the unit and the wall, to allows a correct air
supply and an enough temperature drop of the motor. (Brackets ensure a required space).
Fixing parts
(not provided)
Suspended with
brackets
Fixed on
brackets
Brackets dimensions
Type length height Code
VT 3 660 mm 350 mm EQVE1
VT 4 660 mm 350 mm EQVE1
VT 5 780 mm 405 mm EQVE2
VT 6 780 mm 405 mm AQVE2
VT 7 See brackets manual
Blocking screw at the rear of
the console
10
For the delivery, the supply grille is dismounted, that permits to free it from arrangement issues.
1°/ Choose the way of the hydraulic connection
2°/ Orientate the fins of the double louvers (if you choose this option)
3°/ Put up the air supply grille
4°/ Block the air supply grille, for this put the safety screw on the top.
4°/ Open and orientate the louvers, adjust it according to the area to be treated. Open it at a minimum of
45°.
Present the stops from
the bottom, then those
from the top.
Put the grille by resting
against the stops.
6-3 Horizontal air supply grille mounting
11
6-4 Vertical air supply grille mounting
The vertical air supply grille in a rosette shape, has to be installed in place of louvers.
This grille cannot be mounted with double louvers.
1°/ Mount the grille (see previous page), then block the grille in position. The screws and washers
must be well screwed in order that the grille cannot be dismounted.
Caution
A grille which is not blocked can fall and be dangerous for people and objects which are below.
2°/ Open and orientate the louvers. Adjust it according to the height of the installation and the area to be
treated. Open it at a minimum of 45°.
12
1/ Assemble the filter and the grille support together
before mounting the mixing box.
2/ Fold down the holding lug of the filter.
3/ Assemble of the filter and the damper on the mix-
ing box.
4/ Close the faces of the box which are not used.
Here on the picture, is on the top and the buttom.
5/ Assemble of the mixing box and the water heater. 6/ Close the mixing box after removing the fan elec-
trical connection, according to your suitability.
6-5 Mixing box and accessories mounting
The VT range can be equipped in option with different accessories for air intake. It is necessary to refer to
the manual given with the accessories.
13
Mounting example:
CAUTION:
Do not forget to connect the fan
before closing the mixing box.
MOUNTING UNDER BRACKETS
It is possible to fix the water heater
equipped with mixing box with some wall
brackets which are in option. Please refer
to the bracket mounting manual.
14
6-6 FILTER BOX MOUNTING
The filter box has to be installed at the rear of the heater for air recycling application.
1/ Assemble the filter box to the heater. 2/ Connect the fan and remove the supply cable ac-
cording to the side you prefer.
3/ Insert the filter in its location. 4/ Set the filter.
15
7-HYDRAULIC CONNECTION
After the fixing of the unit you must do the hydraulic connection of the heater. See the plan below for the
connection (Inlet/Outlet).
Realize the water connection and the water tightness, avoiding any mechanical overloads.
Heaters are not equipped with drain-cock so it is necessary to foresee one in the higher point of the in-
stallation.
In order to do not deform pipes from intern blanket, the collector pipes must be kept during the
tightening with a spanner.
Mounting of the hydraulic connection kit (option) :
1– Automatic drain-cock 2- Reduction 3- T connection
4– Bend 5 - Flexible 6– Flow controller
7– Isolation valve
DO NOT FORGET TO REALISE THE WATER TIGHTNESS OF THE KIT DURING THE ASSEMBLY.
NOTE : In the case of chilled water heaters, the condensate drain pan under the unit must be connected
to the sewer pipe. Use a siphon in the drain pan outlet to permits an appropriate condensate drain. The
condensate drain pipe must have a enough downslope to allows the runoff. Test it by pouring water into
the pan to check if the runoff is correct.
4
5
7
7
5
3
2
1
Sortie d’eau
Entrée d’eau
16
8-ELECTRICAL CONNECTION
8-1 Single phase fan
Note : - Electrical characteristics can be modified during the year. As a priority, always refer to the
information on the identification plate of the motor.
- Fans meets ERP2013 requirements
8-2 Three– phase fan
Note : - Electrical characteristics can be modified during the year. As a priority, always refer to the
information on the identification plate of the motor.
- Fans meets ERP2013 requirements
Model
Single phase
Fan diameter
(mm)
Rotation speed
(rpm)
Power absorbed
( W)
Nominal intensity
(A)
VT 3 315 1 050 / 1 350 55 / 90 0.25 / 0.42
VT 3 380 1 200 / 1 350 120 / 150 0.55 / 0.65
VT 4 380 1 200 / 1 350 120 / 150 0.55 / 0.65
VT 4 420 1 050 / 1 350 150 / 200 0.65 / 0.85
VT 5 420 1 050 / 1 350 150 / 200 0.65 / 0.85
VT 5 450 1 150 / 1 350 360 / 420 1.70 / 2.00
VT 6 450 1 150 / 1 350 360 / 420 1.70 / 2.00
VT 6 630 900 / 700 350 / 520 1.60 / 2.50
VT 7 - - - -
Model
Three phase
Fan diameter
(mm)
Rotation speed
(rpm)
Power absorbed
( W)
Nominal intensity
(A)
VT 4 500 920 230 0.55
VT 5 500 920 230 0.55
VT 5 550 910 330 0.95
VT 6 550 910 330 0.95
VT 6 630 910 550 1.40
VT 7 710 600 / 900 750 / 1100 1.4 / 2.00
17
Ø
Ø
Ø
Ø
Ø
Green/yellow
Blue
Yellow*
Brown/Black
Black/Black
(Motor terminal)
(*Yellow or orange wire
Earth
Live
Neutral
Ø
Ø
Ø
Ø
Ø
Green/yellow
Blue
Yelow*
Brown/Black
Black/black
(Motor terminal)
(*Yellow or orange wire)
Earth
Live
Neutral
8-3 Wiring
Switch off the power supply before making the electrical connection. It must be made by a
qualified professional.
Note : The electrical characteristics can be modified during the year. As a priority, always refer to the
information given on the motor identification plate.
Select the protection system and the power supply cable according to the characteristics on the
identification plate.
Wiring of single phase motor with 2 stages
Speed 1 (Low speed) Speed 2 (High speed)
After the connection, control the way of rotation.
Whiring of three phase motor with 1 stage
After the connection, control the way of
rotation. If it is necessary, switch 2 phases to
change the way of rotation.
Wiring of three phase motor with 2 stages
380 V Y (Low speed) 380 V Δ (High speed)
Ø
Ø
Ø
Ø
Ø
Ø
Noir
Marron
Bleu
Blanc
Blanc
Vert/jaune
(Boite à bornes moteur)
Live 1
Live 2
Live 3
Earth
Ø
Ø
Ø
Ø
Ø
Ø
Ø
Red/grey/black
yellox*
Brown
Blue
White
White
Green/yellow
(Motor terminal)
(*Yellow or orange wire)
Live 1
Live 2
Live 3
Earth
Ø
Ø
Ø
Ø
Ø
Ø
Ø
Jaune*/Rouge
Marron/Gris
Bleu/Noir
Blanc
Blanc
Vert/jaune
(Motor terminal)
(*Yellow or orange wire)
Live 1
Live 2
Live 3
Earth
18
Mono 220 V Tri 380 V
Wiring of switch disconnector
Switch disconnector wiring for single phase fan 2 stages :
Ø
Ø
Ø
Ø
Ø
Green/yellow
Bleue
Yellow*
Brown/black
Black/black
(Motor terminal box)
(*Yellow & orange wire)
Earth
Live
Live
Neutral
Power supply mono 230V
Single phase 2 stages
N
0
1 2
4> <2
3> <1
19
Wiring of thermostat and switch disconnector
Each thermostat has a power cut specific and limited. Refer to the amperage indicated on the thermo-
stat and to the documentation delivered with the thermostat. Diagram:
NOTE : In three-phase, the thermostat must be relayed in a control box (it is not our equipment)
following the diagram below:
Tri 380 V+N
L1
L2
L3
N
Tri 380 V
L1
L2
L3
M
M
k1
K1 Coil 220 V
Thermostat
k1
K1 Coil 380 V
Thermostat
20
Unscrew the two biggest screws
9– COOLING OPTION
9-1 Presentation
The water heater VT range can also be used to refresh the room. For this, it is necessary to equip the
unit with a condensate drain pan and a moisture collector.
The cooling use can generate an important condensation according to the hygrometry rate, so it is
necessary to connect it to a drain pan. Foresee a conduit at least equal to the diameter of the pan inlet
as well as the syphon under it.
9-2 Condensate drain pan mounting
1– Orientate the unit following the hydraulic connection, then unscrew the 2 screws M8 (the 2 biggest
ones) which are under the heater. Take off the plastic plug which block a possible condensate drain.
2- Fix the pan support under the unit with the 2 screws M8 previously dismounted. Be careful, the 2
holes for the condensate drain must match.
Caution : Before the mounting, check that the hole of the heater is not blocked by a
plastic plug!
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